Canada–France–Hawaii Telescope
E99069
The Canada–France–Hawaii Telescope is a 3.6-meter optical and infrared telescope on Mauna Kea in Hawaii, operated collaboratively by Canada, France, and the University of Hawaii for astronomical research.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T796337 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Canada–France–Hawaii Telescope Context triple: [Mauna Kea, hasObservatory, Canada–France–Hawaii Telescope]
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A.
Subaru Telescope
The Subaru Telescope is an 8.2-meter optical-infrared reflecting telescope operated by Japan’s National Astronomical Observatory, renowned for wide-field deep-sky observations.
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B.
Gemini South Observatory
Gemini South Observatory is a major 8.1-meter optical and infrared telescope facility located on Cerro Pachón in Chile, forming the southern half of the international Gemini Observatory.
-
C.
Gemini North Observatory
Gemini North Observatory is a premier 8.1-meter optical/infrared telescope facility located on Maunakea in Hawaii, forming one half of the international Gemini Observatory.
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D.
Magellan Clay Telescope
The Magellan Clay Telescope is one of the twin 6.5-meter Magellan telescopes at Las Campanas Observatory in Chile, used for cutting-edge optical and infrared astronomical research.
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E.
Víctor M. Blanco 4-meter Telescope
The Víctor M. Blanco 4-meter Telescope is a prominent optical telescope in Chile widely used for deep-sky surveys and cosmological research.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Canada–France–Hawaii Telescope Target entity description: The Canada–France–Hawaii Telescope is a 3.6-meter optical and infrared telescope on Mauna Kea in Hawaii, operated collaboratively by Canada, France, and the University of Hawaii for astronomical research.
-
A.
Subaru Telescope
The Subaru Telescope is an 8.2-meter optical-infrared reflecting telescope operated by Japan’s National Astronomical Observatory, renowned for wide-field deep-sky observations.
-
B.
Gemini South Observatory
Gemini South Observatory is a major 8.1-meter optical and infrared telescope facility located on Cerro Pachón in Chile, forming the southern half of the international Gemini Observatory.
-
C.
Gemini North Observatory
Gemini North Observatory is a premier 8.1-meter optical/infrared telescope facility located on Maunakea in Hawaii, forming one half of the international Gemini Observatory.
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D.
Magellan Clay Telescope
The Magellan Clay Telescope is one of the twin 6.5-meter Magellan telescopes at Las Campanas Observatory in Chile, used for cutting-edge optical and infrared astronomical research.
-
E.
Víctor M. Blanco 4-meter Telescope
The Víctor M. Blanco 4-meter Telescope is a prominent optical telescope in Chile widely used for deep-sky surveys and cosmological research.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory
ⓘ
infrared telescope ⓘ optical telescope ⓘ research infrastructure ⓘ |
| abbreviation |
Canada–France–Hawaii Telescope
self-linksurface differs
ⓘ
surface form:
CFHT
|
| altitude | approximately 4200 metres above sea level ⓘ |
| commissioned | 1979 ⓘ |
| constructionCompleted | 1979 ⓘ |
| countryPartner |
Canada
ⓘ
France ⓘ United States of America ⓘ
surface form:
United States
|
| firstLight | 1979 ⓘ |
| governingBody | Canada–France–Hawaii Telescope Board of Directors ⓘ |
| hasAperture |
3.58-metre primary mirror
ⓘ
3.6-metre primary mirror ⓘ |
| hasDome | alt-azimuth rotating dome ⓘ |
| hasInstrument |
ESPaDOnS
ⓘ
MegaCam ⓘ SITELLE ⓘ SPIRou ⓘ WIRCam ⓘ |
| locatedAt |
Mauna Kea Observatories
ⓘ
surface form:
Mauna Kea Observatory
|
| locatedIn |
Hawaii
ⓘ
United States of America ⓘ
surface form:
United States
|
| locatedNear | summit of Mauna Kea ⓘ |
| locatedOn | Mauna Kea ⓘ |
| mirrorMaterial | glass-ceramic ⓘ |
| mountType | equatorial mount ⓘ |
| observatoryCode | 568 ⓘ |
| operatedBy |
Canada–France–Hawaii Telescope
self-linksurface differs
ⓘ
surface form:
Canada–France–Hawaii Telescope Corporation
Centre National de la Recherche Scientifique ⓘ
surface form:
Centre national de la recherche scientifique
National Research Council Canada ⓘ University of Hawaiʻi system ⓘ
surface form:
University of Hawaii
|
| ownedBy |
Canada–France–Hawaii Telescope
self-linksurface differs
ⓘ
surface form:
Canada–France–Hawaii Telescope Corporation
|
| partOf | Mauna Kea Observatories ⓘ |
| primaryUse |
astronomical research
ⓘ
infrared astronomy ⓘ optical astronomy ⓘ |
| scientificContribution |
deep imaging of distant galaxies
ⓘ
exoplanet research ⓘ stellar magnetic field measurements ⓘ studies of dark matter through weak lensing ⓘ surveys of Kuiper belt objects ⓘ |
| scientificProgram |
large imaging surveys
ⓘ
time-domain astronomy programs ⓘ |
| telescopeType |
Ritchey–Chrétien reflector
ⓘ
surface form:
Ritchey–Chrétien telescope
|
| wavelengthRange |
near-infrared
ⓘ
optical ⓘ |
| website | https://www.cfht.hawaii.edu/ ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Canada–France–Hawaii Telescope Description of subject: The Canada–France–Hawaii Telescope is a 3.6-meter optical and infrared telescope on Mauna Kea in Hawaii, operated collaboratively by Canada, France, and the University of Hawaii for astronomical research.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
Canada–France–Hawaii Telescope
→
operatedBy
→
Canada–France–Hawaii Telescope
self-linksurface differs
ⓘ
this entity surface form:
Canada–France–Hawaii Telescope Corporation
Canada–France–Hawaii Telescope
→
ownedBy
→
Canada–France–Hawaii Telescope
self-linksurface differs
ⓘ
this entity surface form:
Canada–France–Hawaii Telescope Corporation
Canada–France–Hawaii Telescope
→
abbreviation
→
Canada–France–Hawaii Telescope
self-linksurface differs
ⓘ
this entity surface form:
CFHT
subject surface form:
Mauna Kea
this entity surface form:
Canada-France-Hawaii Telescope
this entity surface form:
Canada-France-Hawaii Telescope
this entity surface form:
Canada-France-Hawaii Telescope
this entity surface form:
Canada-France-Hawaii Telescope
GRACES (Gemini Remote Access to CFHT ESPaDOnS Spectrograph)
→
connectsObservatory
→
Canada–France–Hawaii Telescope
ⓘ
subject surface form:
GRACES
this entity surface form:
Canada-France-Hawaii Telescope
GRACES (Gemini Remote Access to CFHT ESPaDOnS Spectrograph)
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locatedAtObservatory
→
Canada–France–Hawaii Telescope
ⓘ
subject surface form:
GRACES
this entity surface form:
Canada-France-Hawaii Telescope Observatory
GRACES (Gemini Remote Access to CFHT ESPaDOnS Spectrograph)
→
hostTelescope
→
Canada–France–Hawaii Telescope
ⓘ
subject surface form:
GRACES
this entity surface form:
CFHT 3.6 m telescope
GRACES (Gemini Remote Access to CFHT ESPaDOnS Spectrograph)
→
operatedBy
→
Canada–France–Hawaii Telescope
ⓘ
subject surface form:
GRACES
this entity surface form:
Canada-France-Hawaii Telescope Corporation
GRACES (Gemini Remote Access to CFHT ESPaDOnS Spectrograph)
→
collaborationBetween
→
Canada–France–Hawaii Telescope
ⓘ
subject surface form:
GRACES
this entity surface form:
Canada-France-Hawaii Telescope